Math Question and Answers


Question and Answers Forum

All Questions Topic List
Mechanics Questions
Previous in All Question Next in All Question
Previous in Mechanics Next in Mechanics
Question Number 56612 by necx1 last updated on 19/Mar/19

	Answered by mr W last updated on 19/Mar/19

	$a_{1} = a c c e l e r a t i o n o f s m a l l b l o c k$ $a_{2} = a c c e l e r a t i o n o f b i g b l o c k$ $f = f r i c t i o n b e t w e e n b o t h b l o c k s$ $a s s u m e a_{1} = a_{2} = a :$ ${m a}_{1} = f ⩽ μ m g = 0.5 m g$ $m g - f = 2 {m a}_{2}$ $m g - {m a}_{1} = 2 {m a}_{2}$ $g - a = 2 a$ $\Rightarrow a = \frac{g}{3}$ $f = {m a}_{1} = \frac{1}{3} m g < 0.5 m g$ $i . e . a s s u m p t i o n i s c o r r e c t . b o t h b l o c k s$ $m o v e t h e s a m e d i s t a n c e d .$ $w o r k d o n e b y f o r c e f i s$ $W = f d = \frac{m g d}{3}$ $\Rightarrow a n s w e r (1)$
	Commented by necx1 last updated on 20/Mar/19

	$T h a n k y o u s o m u c h s i r . I r e a l l y$ $u n d e r s t a n d t h i s a p p r o a c h .$
	Commented by mr W last updated on 20/Mar/19

	$C a n y o u s o l v e t h e s a m e q u e s t i o n i f$ $a f o r c e o f 2 m g i s a p p l i e d o n t h e b i g$ $b l o c k a n d t h e b i g b l o c k m o v e s a d i s t a n c e$ $o f d ?$ $a s s u m e t h e b i g b l o c k i s b i g e n o u g h s u c h$ $t h a t t h e s m a l l b l o c k a l w a y s r e m a i n s$ $o n t h e b i g b l o c k .$
	Commented by necx1 last updated on 20/Mar/19

	$o k s i r . . . . . I^{'} l l d o t h a t . I^{'} m i n a c l a s s$ $p r e s e n t l y .$
	Commented by mr W last updated on 22/Mar/19

	$i f y o u g e t t h e s a m e r e s u l t, {d o n}^{'} t w o n d e r,$ ${i t}^{'} s j u s t a n a c c i d e n t .$
Terms of Service
Privacy Policy
Contact: info@tinkutara.com

Question and Answers Forum